areolan.
/əˈriːələ/, U.S. /əˈriələ/ (In sense 3 also)Brit. /arɪˈəʊlə/, U.S. /ˌɛriˈoʊlə/ A very small area.
1. One of the small spaces marked out on a surface by intersecting lines, such as those between the veins of a leaf or the nervures of an insect's wing.
ΘΚΠ
the world > life > biology > physical aspects or shapes > marks > [noun] > linear mark > spaces between lines
areola1664
areolet1828
1664 H. Power Exper. Philos. i. 49 Pentagonal and hexagonal areola's [on Corn Poppy seeds].
1830 J. Lindley Introd. Nat. Syst. Bot. 313 A cluster of sporule-like areolæ of cellular tissue.
2. One of the interstices in the tissue of any organized substance.
ΘΚΠ
the world > life > biology > substance > [noun] > interstices in
cell1665
areola1848
1848 J. Quain Elem. Anat. (1882) II. 107 The cell spaces in the calcified matrix [of bone]..being termed the primary areolæ.
1874 W. H. Van Buren & E. L. Keyes Pract. Treat. Surg. Dis. Genito-urinary Organs 2 The areolæ of this tissue become distended with blood.
3. A circular spot; a coloured circle such as that around the human nipple, and that which surrounds the vesicles or pustules in eruptive diseases.
ΘΚΠ
the world > life > the body > skin > mark on skin > [noun]
markOE
lineationa1398
areola1706
halo1706
Mongolian spot1907
triradius1960
1706 Phillips's New World of Words (new ed.) Areola Papillaris, the Circle about a Nipple.
1874 W. R. Grove On Correlation Physical Forces (ed. 6) 365 Surrounded by a dusky and ill-defined areola.
1877 F. T. Roberts Handbk. Med. (ed. 3) I. 164 A faint red areola appears.
4. Biology.
a. A slightly depressed spot on any surface.
ΚΠ
1872 H. A. Nicholson Man. Palæontol. 105 A round or oval smooth and excavated space which is termed the areola.
b. The cell-nucleus of a plant.
ΘΚΠ
the world > life > biology > substance > cell > cell organelle or contents > [noun] > nucleus > types of
phacocyst1845
areola1862
subnucleus1862
fusion nucleus1904
eukaryon1957
1862 C. Darwin On Var. Contrivances Orchids Fertilised v. 206 With a faint areola or nucleus visible.
This entry has not yet been fully updated (first published 1885; most recently modified version published online December 2021).
<
n.1664